January weather forecast
Royalton, WI

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Weather in January

January, the same as December, in Royalton, Wisconsin, is a freezing cold winter month, with an average temperature varying between 21.9°F (-5.6°C) and 10.6°F (-11.9°C).

Temperature

January is the coldest month, exhibiting average temperatures of 21.9°F (-5.6°C) at the peak and 10.6°F (-11.9°C) at the base.

Humidity

January is the most humid month in Royalton, with an average relative humidity of 89%.

Rainfall

The month with the least rainfall in Royalton is January, when the rain falls for 4 days and typically collects 1.18" (30mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Royalton is January, when snow falls for 12.9 days and typically aggregates up to 6.06" (154mm) of snow.

Daylight

In Royalton, the average length of the day in January is 9h and 18min.
On the first day of the month, sunrise is at 7:31 am and sunset at 4:26 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:02 pm CST.

Sunshine

The month with the least sunshine in Royalton is January, with an average of 3.5h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 1 in January transforms into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Royalton?

With average high and low temperatures of 21.9°F (-5.6°C) and 10.6°F (-11.9°C) respectively, January is Royalton's coldest month.

How cold is January in Royalton?

Royalton in January has an average high-temperature of 21.9°F (-5.6°C) and an average low-temperature of 10.6°F (-11.9°C).

What is the most humid month in Royalton?

January is the most humid month in Royalton, with an average relative humidity of 89%.

What is the average humidity in January in Royalton?

The average relative humidity in January in Royalton is 89%.

What is the driest month in Royalton?

January is the month with the least rainfall. Rain falls for 4 days and accumulates 1.18" (30mm) of precipitation.

How much does it rain in Royalton in January?

In Royalton, Wisconsin, in January, during 4 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

What is the snowiest month in Royalton?

The month with the most snowfall in Royalton is January, when snow falls for 12.9 days and typically aggregates up to 6.06" (154mm) of snow.

How much does it snow in Royalton in January?

In January, in Royalton, it is snowing for 12.9 days. Throughout January, 6.06" (154mm) of snow is accumulated.

What is the average length of the day in January in Royalton?

The average day length in January is 9h and 18min.

What time are sunrise and sunset in January in Royalton?

On the first day of January, sunrise is at 7:31 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:02 pm CST.

What is the month with the least sunshine in Royalton?

With an average of 3.5h of sunshine, January has the least sunshine of the year in Royalton, Wisconsin.

How long on average sun shines in January in Royalton?

In January, the average sunshine duration is 3.5h.

When is the lowest UV index in Royalton?

The months with the lowest UV index in Royalton are January, November and December, with an average maximum UV index of 1.

What is the UV index intensity in January in Royalton?

In January, the average daily maximum UV index in Royalton is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Royalton, WI

Average temperature in January - Royalton, WI
  • Average high temperature in January: 21.9°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (21.9°F).

  • Average low temperature in January: 10.6°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

Average pressure in January
Royalton, WI

Average pressure in January - Royalton, WI
  • Average pressure in January: 30.09"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Royalton, WI

Average wind speed in January - Royalton, WI
  • Average wind speed in January: 9.6mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in January
Royalton, WI

Average humidity in January - Royalton, WI
  • Average humidity in January: 89%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).

Average rainfall in January
Royalton, WI

Average rainfall in January - Royalton, WI
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in January
Royalton, WI

Average rainfall days in January - Royalton, WI
  • Average rainfall days in January: 4 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (4 days).

Average snowfall in January
Royalton, WI

Average snowfall in January - Royalton, WI
  • Average snowfall in January: 6.06"

The month with the highest snowfall is January (6.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Royalton, WI

Average snowfall days in January - Royalton, WI
  • Average snowfall days in January: 12.9 days

The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Royalton, WI

Average daylight in January / Average sunshine in January - Royalton, WI
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in January
Royalton, WI

Average sunshine days in January - Royalton, WI
  • Average sunshine days in January: 16.5 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is April (11.7 days).

Average UV index in January
Royalton, WI

Average UV index in January - Royalton, WI
  • Average UV index in January: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in January
Royalton, WI

Average cloud cover in January - Royalton, WI
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in January
Royalton, WI

Average visibility in January - Royalton, WI
  • Average visibility in January: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Royalton, Wisconsin, USA

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